VARISTOR AUMOV® & LV UltraMOV™ Varistor Design Guide for DC & Automotive Applications High Surge Current Varistors Design Guidefor Automotive AUMOV®
● About the AUMOV ® Varistor Series:
The AUMOV® Varistor Series is designed for circuit protection in low voltage (12VDC, 24VDC and 42VDC) automotive systems. This series is available in five disc sizes with radial leads with a choice of epoxy or phenolic coatings. The Automotive MOV Varistor is AEC-Q200 (Table 10) compliant. It offers robust load dump, jump start, and peak surge current ratings, as well as high energy absorption capabilities.
These devices are available in these sizes and ratings:
■ Disc sizes: 5mm, 7mm, 10mm, 14mm, 20mm
■ Operating Voltage Ratings: 16–50VDC
■ Surge Current Ratings: 400–5000A (8/20μs)
■ Jump Start Ratings: 6–100 Joules
■ Load Dump Ratings: 25–35 VJump
AUMOV ® Varistor Series Features:
■ AEC–Q200 (Table 10) compliant
■ Robust load dump and jump start ratings
■ High operating temperature: up to 125°C (phenolic coating option)
■ High peak surge current rating and energy absorption capability
AUMOV ® Varistor Series Benefits:
■ Meets requirements of the automotive industry
■ Complies with ISO 7637-2
■ Offers options suitable for higher temperature environments and applications
■ Enhances product safety as a result of superior surge protection and energy absorption
■ ISO/TS 16949 Certified manufacturing facilities
● About the LV UltraMOV TM Varistor Series:
The LV UltraMOV TM Varistor Low Voltage, High Surge Current Varistor Series provides an
ideal circuit protection solution for lower DC voltage applications by offering a superior surge rating in a smaller disc size. The maximum peak surge current rating can reach up to 10kA (8/20μs pulse) to protect against high peak surges, including lightning strike interference, electrical fast transients on power lines, and inductive spikes in industrial applications.
These devices are available in these sizes and voltage ranges:
● Disc Diameter: 5mm, 7mm, 10mm, 14mm and 20mm
● Maximum Continuous Voltage (VDC): 14V to 125V
● Varistor Voltage (Vnom) at 1m A: 18V to 150V
LV UltraMOV TM Varistor Series Features:
● Breakthrough in low voltage varistor design provides high peak surge current rating
● Reduced footprint and volume required for surge protection
● High energy absorption capability
● High resistance to temperature cycling
● Optional phenolic coating
● Lead-free, halogen-free, and RoHS compliant
LV UltraMOV TM Varistor Series Benefits:
● Increased long-term reliability due to the ability to handle higher surges over the end product’s lifetime
● More board space is available for higher value functional components
● Lower weight and cost for end product from use of a smaller disc
● Higher surge handling density in critical surge protection device module solutions
● Higher operating temperature range—up to 125°C
● Environmentally friendly product
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[ DC ][ automotive electronics applications ][ electronic modules designed for safety systems ][ body electronics ][ powertrain systems ][ heating/ventilation/air-conditioning control ][ navigation ][ center console ][ infotainment systems ][ Wipers ][ Airbag ][ ABS ][ Motor ][ ECU ][ Starter ][ Lights ][ Speaker ][ 12VDC–96VDC circuits ][ Telecom/SPD Application ][ Outdoor Low Voltage Application ][ motion sensors ][ IP cameras ][ DVRs ][ LED lighting ][ relay coils ][ Surge Protection Devices (SPD) ][ Uninterruptible Power Supplies (UPSs) ][ AC Power Taps ][ AC Power Meters ] |
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Application note & Design Guide |
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English Chinese Chinese and English Japanese |
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2016/11/25 |
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EC139Nv0615 |
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1.2 MB |
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